From d50a821374418bd2ab6c6c27f487f9a5149ae57a Mon Sep 17 00:00:00 2001
From: Tim Mayberry <mojofunk@gmail.com>
Date: Fri, 5 Feb 2016 23:13:44 +1000
Subject: [PATCH] Add a missing include from portaudio WINMME source file

Apparently this is now required by my version of gcc/mingw
---
 libs/backends/portaudio/winmmemidi_io.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libs/backends/portaudio/winmmemidi_io.cc b/libs/backends/portaudio/winmmemidi_io.cc
index d845e60551..00e3eb0182 100644
--- a/libs/backends/portaudio/winmmemidi_io.cc
+++ b/libs/backends/portaudio/winmmemidi_io.cc
@@ -20,6 +20,7 @@
 #include <mmsystem.h>
 
 #include <sstream>
+#include <set>
 
 #include "pbd/error.h"
 #include "pbd/compose.h"